Gladiolus Thrip is a recurring villain in the short-lived TV show Demons. He is a villainous vampire that appears in both the first and last episodes of the shows' only series.
In the fictional universe in which Demons is set, Half-Lives thrive on the planet. Half-Lives is a term used to describe all sorts of supernatural creatures, it is said they outnumber humans 7 to 1. Thrip is a Half-Life, specifically a vampire. He is Type 12 Half-Life, one of the most dangerous in the underworld.He is determined to kill Luke Rutherford, the last living heir of Abraham Van Helsing and so a serious threat to the half-lives. In his attack on Luke, Thrip squares with Rupert Galvin, a Half-Live hunter and his old enemy. Being a high-ranking half-life, he is served by lower supernatural creatures. His lieutenant is the hideous Redlip, a Type 5 half-life who is a deformed humanoid feasting on cockroaches. He also has a pack of Type 4 Noisy Boys, humanoid Hyenas reminiscent of a ASBO gang.